B.08 LF008 LTM Report Final_rev0.pdf

February 17, 2023

Gary Cox Robins IST, AFCEC/CZOE Restoration Program Manager 380 Robins Parkway - Bldg. # 359 Robins Air Force Base, GA

RE: Draft Final 2022 Long-Term Management Sampling Reports for Sites LF006, LF008, LF015, LF016

Dear Mr. Cox:

The Federal Remediation Branch (FRB) in the North Carolina Division of Waste Management (Division) received the Draft Final 2022 Long-Term Management Sampling Reports for Sites LF006, LF008, LF015, LF016 on January 19, 2023. The Division has the following comments:

• In future reports, please show the flow direction of Stoney Creek on figures.

• Several of the monitoring wells at all four sites have low pH. The 15A NCAC 02L .0202 groundwater quality standard for pH is 6.5-8.5. Typically, there is leeway given if the background pH level is naturally low. This should be addressed in future reports.

• Performance monitoring should continue every five years for the groundwater and surface water locations with the same set of analytical parameters.

Within 30 days of receipt of this letter please ensure to submit a final, non-draft electronic copy of the aforementioned document(s).

If you have any questions, please contact me at tessa.monday@ncdenr.gov.

Sincerely, Tessa R Monday Environmental Engineer Division of Waste Management

FINAL

2022 Long-Term Management Sampling Report for Site LF008

February 2023..

Carolina Group Performance Based Remediation Seymour Johnson Air Force Base, North Carolina

Contract No. FA8903-13-C-0006

Prepared for:

Air Force Civil Engineer Center

Prepared by:

FPM Remediations, Inc.

An Olgoonik Company 181 Kenwood Ave.

Oneida, NY 13421

12120 Shamrock Plaza, Suite 100

Omaha, NE 68154

TABLE OF CONTENTS

2022 LTM Sampling Report for Site LF008 i

Seymour Johnson AFB, NC

FA8903-13-C-0006

Section 1 Introduction ..................................................................................................................... 1-1

1.1 Authority .................................................................................................. 1-1

1.2 Purpose and Scope ................................................................................... 1-1

1.3 Report Organization ................................................................................. 1-1

Section 2 Groundwater and Surface Water Monitoring ............................................................... 2-1

2.1 Site Description ........................................................................................ 2-1

2.2 Groundwater and Surface Water Sampling Activities ............................. 2-1

2.3 Groundwater and Surface Water Sampling Results ................................. 2-2

2.4 Investigation Derived Waste .................................................................... 2-3

Section 3 Data Quality Evaluation.................................................................................................. 3-1

3.1 Laboratory Data Quality Review ............................................................. 3-1

3.1.1 General ......................................................................................... 3-1

3.1.2 Data Review Process .................................................................... 3-1

3.1.3 Analytical Result Qualifications .................................................. 3-1

3.1.4 Conclusions of Data Quality Review ........................................... 3-1

Section 4 Conclusions and Recommendations ............................................................................ 4-1

4.1 Conclusions .............................................................................................. 4-1

4.2 Recommendations .................................................................................... 4-1

Section 5 References ...................................................................................................................... 5-1

2022 LTM Sampling Report for Site LF008 ii

Seymour Johnson AFB, NC

FA8903-13-C-0006

List of Tables Table 1 Well Construction Details Table 2 Summary of Field Water Quality Parameters Table 3 Summary of Sampling Table 4 Summary of Analytical Data

List of Figures Figure 1 LF008 Site Location Map Figure 2 LF008 Site Map Figure 3 LF008 Monitoring Locations and Groundwater Contour Map Figure 4 LF008 COPC Concentrations

List of Appendices Appendix A Laboratory Reports Appendix B Data Validation Reports Appendix C Field Documentation

2022 LTM Sampling Report for Site LF008 iii

Seymour Johnson AFB, NC

FA8903-13-C-0006

List of Acronyms µg/L micrograms per liter FPM FPM Remediations, Inc.

LF008 Landfill Number 1 LTM long-term management NC 2L Standard 15A North Carolina Administrative Code 02L.0202 Groundwater

Quality Standards NCDEQ North Carolina Department of Environmental Quality SJAFB Seymour Johnson Air Force Base SWMU Solid Waste Management Unit SVOC semi-volatile organic compound

URS

USEPA

URS Group, Inc.

United States Environmental Protection Agency

VOC volatile organic compound

SECTIONONE Introduction

2022 LTM Sampling Report for Site LF008 1-1

Seymour Johnson AFB, NC

FA8903-13-C-0006

This Long-Term Management (LTM) Sampling Report provides the results of the groundwater and surface water sampling completed for LF008 (Landfill Number 1) (Solid Waste Management Unit [SWMU] 1) at Seymour Johnson Air Force Base (SJAFB), Goldsboro, North Carolina. The locations of SJAFB and LF008 are shown on Figure 1.

1.1 AUTHORITY

FPM Remediations, Inc. (FPM) has been contracted by the Air Force Civil Engineer Center under Contract No. FA8903-13-C-0006 to complete performance based remediation at SJAFB under the Environmental Restoration Program. URS Group, Inc. (URS) is subcontracted to FPM to complete the contract performance objectives for LF008, and this LTM report has been prepared by URS. The contracted performance objective for LF008 is Optimized Exit Strategy with annual inspections as well as groundwater and surface water monitoring in five year intervals (2017 and 2022). The LTM at SJAFB is being conducted under the Comprehensive Environmental Response, Compensation, and Liability Act. The United States Environmental Protection Agency (USEPA) deferred lead regulatory status for SJAFB to the North Carolina Department of Environmental Quality (NCDEQ).

1.2 PURPOSE AND SCOPE

The purpose of this report is to present the groundwater and surface water sampling activities and analytical results completed in accordance with the approved LTM Design Addendum (FPM/URS, 2015). The final remedy for LF008 (LTM) was designed to maintain protection of human health and the environment through long-term monitoring of groundwater and surface water downgradient of LF008 along with annual landfill inspections. The annual landfill inspections will be completed in December of 2022 and the results will be presented in a separate report.

1.3 REPORT ORGANIZATION

This LTM Sampling Report is organized into the following sections:

Section 1 presents the authority, purpose and scope, and report organization.

Section 2 describes the sampling activities and analytical results.

Section 3 presents the data quality evaluation.

Section 4 presents conclusions and recommendations.

Section 5 presents a list of references cited in the report.

Appendix A includes the analytical laboratory reports.

Appendix B includes the analytical data validation reports.

1 Introduction

SECTIONONE Introduction

2022 LTM Sampling Report for Site LF008 1-2

Seymour Johnson AFB, NC

FA8903-13-C-0006

Appendix C includes the field documentation.

SECTIONTWO Groundwater and Surface Water Monitoring

2022 LTM Sampling Report for Site LF008 2-1

Seymour Johnson AFB, NC

FA8903-13-C-0006

2.1 SITE DESCRIPTION

Site LF008 is a former landfill/hardfill with waste materials left in place. The site is listed on the installation’s Resource Conservation and Recovery Act permit as SWMU 1 (NCDEQ, 2019).

The site was reportedly active from 1941 to 1946 and received general refuse, ash from the refuse incinerator (SWMU 88) and heat plant, and small quantities of miscellaneous industrial wastes. During excavation training in the 1980s, portions of the landfill were uncovered, revealing remnants of landfill debris.

Approximately one-third of the former landfill area is currently paved with aggregate and used by contractors to store equipment. The southern two-thirds are densely vegetated. A soil cover of at least 2 feet in estimated thickness and consisting primarily of sands, silty sands, and silt is present across the northern area of the site, based on shallow geotechnical borings completed in 2003 (URS, 2004). Less or no significant cover is present in the southern forested portion of the landfill site, where the primary means of disposal appear to have been surface deposition, rather than trenching and filling. Site surface drainage is toward nearby Stoney Creek. A major power line right-of-way is located adjacent to the landfill. The perimeter of the former landfill in relation to Stoney Creek and other surrounding features are shown on Figure 2.

Current uses for the site include:

• Base and contractor equipment and material storage (including a laydown yard for contractors) within the fenced area paved with aggregate.

• There are no known or reported uses of the wooded land outside the fenced area described above, with the exception of a right-of-way corridor for high voltage overhead power lines.

2.2 GROUNDWATER AND SURFACE WATER SAMPLING ACTIVITIES

During the 2022 sampling event, the water level meter malfunctioned and thus only some water levels were able to be collected. Due to this, the water levels from the 2021 landfill inspections were utilized in their place (URS, 2022). This substitution was based on the consistent depth to water and groundwater flow directions from 2018 through 2021 as measured in the annual inspection reports (URS, 2019, 2020, and 2021). The location of the monitoring well network is shown on Figure 2. Depth-to-water was measured from a surveyed measuring point established on the top of each polyvinyl chloride well casing using an electronic water level probe.

Measurements were read to the nearest 0.01 foot and recorded in the field logbook. Depth-to-water measurements were converted to water-level elevation referenced to sea level. Contouring of the water table based on the calculated December 2021 groundwater elevations is presented on Figure 3. Groundwater contouring indicates a flow direction to the northwest, toward Stoney Creek. This groundwater flow direction is consistent with the groundwater flow direction identified in the annual inspections completed from 2018 through 2021 (URS, 2019, 2020, and 2021). Well construction details and depth-to-water measurements for each well are summarized

2 Groundwater and Surface Water

2022 LTM Sampling Report for Site LF008 2-2

Seymour Johnson AFB, NC

FA8903-13-C-0006

in Table 1. Copies of sample collections field sheets on which field measurements and other observations were recorded are included in Appendix C.

Groundwater and surface water sampling were collected at LF008 on 23 March 2022 and 29 March 2022. Sampling was completed as follows:

• Groundwater samples were collected from monitoring wells MW-303, MW-304, MW-305, MW-307, and MW-308.

• Surface water samples were collected from location SW-BKG-LF8 and SW-BKG-LF15.

• Groundwater and surface water samples were analyzed for volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), pesticides, and metals.

• Groundwater was also monitored in the field for water quality parameters: temperature, conductivity, pH, dissolved oxygen, oxidation-reduction potential and turbidity.

2.3 GROUNDWATER AND SURFACE WATER SAMPLING RESULTS

The summary of field water quality parameters is presented in Table 2. A summary of sampling is presented in Table 3. A summary of the analytical results is presented in Table 4. Analytical results above respective 15A North Carolina Administrative Code 02L.0202 Groundwater Quality Standards (NC 2L Standards) is presented in Figure 4. A summary of the sampling results by analytical method is as follows:

• VOCs – Cis-1,2-Dichloroethene, was detected in monitoring well MW-304. The result,

0.34 J, was reported below the NC 2L Standards (70 micrograms per liter [µg/L]), and no cis-1,2-dichloroethene was detected in samples collected from Stoney Creek.

• SVOCs – There were no SVOC detections at any monitoring point.

• Pesticides – There were no pesticides detections at any monitoring point.

• Metals – Seven analytes, antimony, cadmium, cobalt, iron, lead, manganese and thallium were detected at concentrations above the North Carolina 2L Groundwater Standards.

− Antimony was detected at monitoring locations MW-308 and SW-BKG-LF8 at concentrations above the NC 2L Groundwater Standard of 1 µg/L. However, the concentrations were below the Environmental Protection Agency Nationally Recommended Water Quality Criteria of 5.6 µg/L (USEPA, 2022).

− Cadmium was detected in MW-303, 5.5 µg/L, above the NC 2L Standard of 2 µg/L.

This result is consistent with 2017 historical results where cadmium was detected in MW-303 at a concentration of 4.6 J µg/L (URS, 2018). Cadmium was not detected at any of the other monitoring points including both surface water samples collected from upstream and downstream of Site LF008.

2022 LTM Sampling Report for Site LF008 2-3

Seymour Johnson AFB, NC

FA8903-13-C-0006

− Cobalt was detected in two groundwater samples collected from MW-307 and MW-303 at a concentration above the NC 2L Groundwater Standard of 1 µg/L. Cobalt detections were consistent with 2017 historical sampling data (URS, 2018).

− Iron was detected at all five monitoring wells and both surface water samples above the NC 2L Standard of 300 µg/L. Iron is not considered to be a contaminant of potential concern at LF008 due to the fact that standards for iron are based on aesthetics for drinking water and the aquifer at LF008 is not currently nor is it expected to be used as a drinking water source (FPM/URS, 2015).

− Lead was detected in one monitoring point, MW-308, at a concentration of 156 µg/L, which is above the NC 2L Standard of 15 µg/L. This result is down from the 2017 historical results where lead was detected at MW-308 at a concentration of 234 µg/L (URS, 2018). Lead was not detected at any of the other monitoring points, including both upstream and downstream surface water samples collected from Stoney Creek.

− Manganese was detected in one monitoring point, MW-303, above the NC 2L Standard of 50 µg/L. This result is consistent with 2017 historical results where manganese was detected at MW-303 at a concentration of 225 µg/L (URS, 2018). Manganese was not detected at any of the other monitoring points and a comparison of concentrations reported in both upstream and downstream surface water samples suggest there is no significant source of manganese discharge from LF008 groundwater or impacting Stoney Creek.

− Thallium was detected in two monitoring points, MW-305 and MW-307, above the NC 2L Standard of 2 µg/L. The results are a slight increase from the 2017 historical results (URS, 2018). Thallium was not detected at any of the other monitoring points, including both upstream and downstream surface water samples collected from Stoney Creek.

2.4 INVESTIGATION DERIVED WASTE

Aqueous waste generated during the equipment decontamination and purge water collected during groundwater sampling was collected in five-gallon buckets. The water was discharged to an oil/water separator located at the civil engineering wash rack on base. Used personal protective equipment was treated as solid waste and disposed of on base in a trash receptacle.

SECTIONTHREE Data Quality Evaluation

2022 LTM Sampling Report for Site LF008 3-1

Seymour Johnson AFB, NC

FA8903-13-C-0006

3.1 LABORATORY DATA QUALITY REVIEW

3.1.1 General

Groundwater samples collected during the sampling events were submitted to SGS Laboratories in Orlando, Florida. The groundwater samples were analyzed for VOCs by USEPA SW-846 Method 8260D, SVOC by USEPA SW-846 8270E, metals by SW-846 6010D/7470A, and pesticides by SW-846 8081B. A copy of the SGS laboratory packages and a copy of the URS completed data validation checklist are provided in Appendix A and Appendix B, respectively.

3.1.2 Data Review Process

Analytical data were reviewed and validated by URS in accordance with the LTM Design Addendum (FPM/URS, 2015). The data review process included evaluations of the following elements:

• Laboratory case narrative/cooler receipt form

• Sample documentation

• Sample preservation and holding time compliance

• Sample completeness

• Method detection and reporting limits

• Blank contamination

• Laboratory control sample recoveries

• Surrogate compound recoveries

• Matrix spike and matrix spike duplicate recoveries

• Laboratory duplicate results

• Field duplicate results

• Additional qualifications

3.1.3 Analytical Result Qualifications

No qualifications were applied to the analytical results based on the data review findings.

3.1.4 Conclusions of Data Quality Review

The analytical data were found to be acceptable for their intended use based on the data reviews.

Completeness, defined to be the percentage of analytical results judged to be valid, including estimated data, was 100 percent for the events.

3 Data Quality Evaluation

SECTIONFOUR Conclusions and Recommendations

2022 LTM Sampling Report for Site LF008 4-1

Seymour Johnson AFB, NC

FA8903-13-C-0006

4.1 CONCLUSIONS

Samples were collected from five groundwater monitoring wells and from points upstream and downstream of the landfill in the adjacent surface water body (Stoney Creek). The groundwater and surface water samples were analyzed for VOCs, SVOCs, pesticides, and metals. The sampling results identified four analytes (cadmium, iron, lead and manganese) in groundwater at concentrations exceeding their NC 2L Standards:

• Antimony was detected at monitoring locations MW-308 and SW-BKG-LF8 at concentrations above the NC 2L Groundwater Standard of 1 µg/L. Both detections were below the recommended water quality criteria of 5.6 µg/L, and the antimony exceedance in MW-308, is consistent with the 2017 historical sampling data (URS, 2018). Additionally, antimony was detected in SW-BKG-LF8, but not the downstream surface water sample, SW-BKG-LF15, which suggest there is no source of antimony discharge from LF008 groundwater or impacting Stoney Creek.

• The cadmium, lead and manganese detections and their reported concentrations are consistent with historical sampling data (URS, 2018). Both upstream and downstream surface water samples were non-detect for cadmium, which suggest there is no significant source of dissolved-phase constituents discharging from LF008 groundwater to Stoney Creek.

• The cobalt detection at MW-303 and MW-307 were above the NC 2L Standard of 1 µg/L.

The exceedance at MW-303, 11.2 J µg/L, was consistent with 2017 historical sampling data (URS, 2018). The MW-307 exceedance was below the recommended water quality criteria of 3 µg/L. A comparison of the groundwater concentrations reported in both upstream and downstream surface water samples suggest there is no significant source of dissolved-phase constituents discharging from LF008 groundwater to Stoney Creek.

• The iron concentrations reported in samples collected from site groundwater and the surface water in Stoney Creek are consistent with historical sampling data (URS, 2018). A comparison of the iron concentrations in the upstream and downstream surface water samples indicate that groundwater discharging from LF008 to Stoney Creek is not causing adverse impacts to surface water quality.

• The thallium detections in monitoring points, MW-305 and MW-307, show a slight increase from the 2017 historical results (URS, 2018). Thallium was not detected at any of the other monitoring points, including both upstream and downstream surface water samples collected from Stoney Creek, suggesting that there is no significant discharge of thallium from LF008 groundwater to Stoney Creek.

4.2 RECOMMENDATIONS

Based on the current operations and performance monitoring results, URS recommends the following:

4 Conclusions and Recommendations

SECTIONFOUR Conclusions and Recommendations

2022 LTM Sampling Report for Site LF008 4-2

Seymour Johnson AFB, NC

FA8903-13-C-0006

• Performance monitoring should continue every 5 years for the groundwater and surface water locations with the same set of analytical parameters. The next sampling event will occur in 2027.

SECTIONFIVE References

2022 LTM Sampling Report for Site LF008 5-1

Seymour Johnson AFB, NC

FA8903-13-C-0006

FPM/URS. 2015. Long-Term Management Design Addendum, Site LF006 / SWMU 4 / Landfill No. 4, Site LF008 / SWMU 1 / Landfill No. 1, Site LF015 / SWMU 2 / Landfill No. 2, Site LF016 / SWMU 3 / Landfill No. 3, Seymour Johnson Air Force Base, North Carolina. December.

NCDEQ. 2019. State of North Carolina Division of Waste Management Hazardous Waste Management Permit, Seymour Johnson Air Force Base Permit, Permit No.

NC7570024474R2. August.

URS Group, Inc. (URS). 2004. Final Management Plan for Former Landfill Sites (LF-06, LF- 08, LF-15, LF-16), Seymour Johnson Air Force Base, North Carolina. May.

URS. 2018. Final 2017 Long-Term Management Sampling and Annual Site Inspection Report Site LF008, Seymour Johnson Air Force Base, North Carolina. July.

URS. 2019. Final Landfill Inspection Report (2018) for Former Landfill Site LF008 [SWMU 1], Seymour Johnson Air Force Base, North Carolina. April.

URS. 2020. Final Landfill Inspection Report (2019) for Former Landfill Site LF008 [SWMU 1], Seymour Johnson Air Force Base, North Carolina. May.

URS. 2021. Final Landfill Inspection Report (2020) for Former Landfill Site LF008 [SWMU 1], Seymour Johnson Air Force Base, North Carolina. March.

URS. 2022. Final Landfill Inspection Report (2021) for Former Landfill Site LF008 [SWMU 1], Seymour Johnson Air Force Base, North Carolina. May.

USEPA. 2022. National Recommended Water Quality Criteria - Human Health Criteria Table.

https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table

5 References

2022 LTM Sampling Report for Site LF008 Seymour Johnson AFB, NC

TABLES

Table 1 Well Construction Details

Site LF008, Seymour Johnson Air Force Base

Surface Elevation

Top of Casing

Elevation Well Boring

Depth Screened Interval

Depth to Water from

Depth to Water from

20221

GW

Elevation from 2021

(ft amsl) (ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft btoc) (ft amsl)

MW-303 75.79 77.76 18.00 4.10-13.60 7.88 NT 69.88

MW-304 67.03 69.10 16.00 3.50-13.00 4.82 11.70 64.28

MW-305 82.43 84.35 18.00 6.50-16.00 9.71 11.70 74.64

MW-307 68.80 72.44 8.00 2.00-8.00 5.83 5.82 66.61

MW-308 73.40 76.57 8.00 2.00-8.00 10.4 NT 66.17

Notes:

amsl = above mean sea level bgs = below ground surface btoc = below top of casing ft = feet

GW = groundwater

NT = not taken

1 Water levels from MW-303 and MW-308 were not collected due to equipment malfunction.

Water levels from 2021 inspections were used to develop water contours.

Well Identification

2022 LTM Sampling for Site LF008 Carolina Group PBR FA8903-13-C-0006 Page 1 of 1

Table 2 Summary of Field Water Quality Parameters Site LF008, Seymour Johnson Air Force Base

Well Identification Date pH

Temperature (°C)

Conductivity (mS/cm)

Dissolved Oxygen (mg/L)

ORP

(mV)

Turbidity

(NTU)

MW-303 3/23/2022 3.23 14.6 0.171 0.53 290.1 5.23

MW-304 3/23/2022 3.87 15.4 0.116 0.32 186.9 8.77

MW-305 3/23/2022 5.94 15.8 0.192 4.37 67.5 4.72

MW-307 3/23/2022 6.07 13.0 0.256 0.48 51.2 1.76

MW-308 3/23/2022 4.38 13.6 0.0226 8.61 249.3 9.13

SW-BKG-LF8 3/29/2022 6.60 11.1 0.070 9.23 59.1 3.98

SW-BKG-LF15 3/29/2022 6.82 10.2 0.068 10.76 49.1 4.17

Notes:

°C = degrees Celsius ft = feet mg/L = milligram per liter mS/cm = millisiemens per centimeter mV = millivolt

NTU = nephelometric turbidity unit

ORP = oxidation-reduction potential

2022 LTM Sampling for Site LF008 Carolina Group PBR

Table 3 Summary of Sampling

Site LF008, Seymour Johnson Air Force Base

Location Number

Collection Date

Collection Time

Sampling Matrix

VOCs (8260D)

SVOCs (8270E)

Metals (6010D/ 7470A)

Pesticides (8081B)

MW-303 3/23/2022 1305 GW X X X X

MW-304 3/23/2022 1402 GW X X X X

MW-305 3/23/2022 1145 GW X X X X

MW-307 3/23/2022 0949 GW X X X X

MW-308 3/23/2022 1130 GW X X X X

SW-BKG-LF8 3/29/2022 1307 SW X X X X

SW-BKG-LF15 3/29/2022 1210 SW X X X X

Notes:

GW = groundwater

SVOCs = semivolatile organic compounds

SW = surface water

VOCs = volatile organic compounds

2022 LTM Sampling for Site LF008

Table 4 Summary of Analytical Data

Site LF008, Seymour Johnson Air Force Base

FIELD ID

DATE COLLECTED

NC 02L1 NC 02B2 SJAFB BC3 Maximum Frequency Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual VOLATILE ORGANIC COMPOUNDS (µg/L)

1,2-Dichloroethene (cis) 70 60b NE 0.34 J 1 / 7 < 1 U 0.34 1 J < 1 U < 1 U < 1 U < 1 U < 1 U SEMIVOLATILE ORGANIC COMPOUNDS (µg/L)

No Analytes Detected PESTICIDES (ORGANOCHLORINE) (µg/L)

No Analytes Detected METALS (µg/L)

Aluminum NE 6500 1060 6010 7 / 7 6010 200 743 200 283 200 46.9 200 J 643 200 218 200 180 200 J Antimony 1 5.6a NE 2.8 J 3 / 7 < 6 U < 6 U < 6 U 1 6 J 2.8 6 J 1.7 6 J < 6 U Barium 700 1000 NE 84.1 J 7 / 7 22.5 200 J 57.1 200 J 27.8 200 J 84.1 200 J 15.7 200 J 49.4 200 J 46.2 200 J Beryllium 4 NE 86 0.3 J 2 / 7 0.3 4 J 0.2 4 J < 4 U < 4 U < 4 U < 4 U < 4 U Boron 700 NE NE 62.6 J 6 / 7 39.5 200 J 29.9 200 J 62.6 200 J 55 200 J < 200 U 19.7 200 J 19.5 200 J Cadmium 2 NE 7920 5.5 2 / 7 5.5 5 < 5 U 0.6 5 J < 5 U < 5 U < 5 U < 5 U Calcium NE NE 15 79000 7 / 7 16400 1000 12400 1000 43400 1000 79000 1000 3560 1000 7980 1000 7740 1000 Chromium 10 NE NE 1.1 J 1 / 7 < 10 U < 10 U < 10 U 1.1 10 J < 10 U < 10 U < 10 U Cobalt 1 3b NE 11.2 J 4 / 7 11.2 50 J 0.2 50 J < 50 U 1.2 50 J < 50 U < 50 U 0.2 50 J Copper 1000 1300a 1680 1.2 J 1 / 7 1.2 25 J < 25 U < 25 U < 25 U < 25 U < 25 U < 25 U Iron 300 NE NE 4840 7 / 7 4840 300 4770 300 472 300 533 300 351 300 1180 300 940 300 Lead 15 NE 3080 156 7 / 7 3.2 5 J 2.8 5 J 3.2 5 J 4.3 5 J 156 5 1.1 5 J 1.1 5 J Magnesium NE NE 65.2 4300 J 7 / 7 2570 5000 J 2180 5000 J 4300 5000 J 3270 5000 J 1140 5000 J 2350 5000 J 2120 5000 J Manganese 50 50a NE 139 7 / 7 139 15 46.6 15 8.5 15 J 24.3 15 4.6 15 J 31 15 23.5 15 Nickel 100 25 NE 41.4 7 / 7 41.4 40 1.2 40 J 3.2 40 J 1.5 40 J 0.4 40 J 0.4 40 J 0.6 40 J Potassium NE NE NE 3380 J 7 / 7 2100 10000 J 1870 10000 J 3380 10000 J 2840 10000 J 625 10000 J 3150 10000 J 2980 10000 J Selenium 20 170a NE 3.5 J 2 / 7 < 10 U 3.5 10 J < 10 U < 10 U < 10 U 3.2 10 J < 10 U Sodium NE NE 9810 7490 J 7 / 7 3360 10000 J 4960 10000 J 4390 10000 J 3240 10000 J 902 10000 J 7490 10000 J 7380 10000 J Thallium 2 NE NE 3.2 J 2 / 7 < 10 U < 10 U 2.5 10 J 3.2 10 J < 10 U < 10 U < 10 U Vanadium 7 NE NE 1.6 J 5 / 7 < 50 U 1.6 50 J 0.7 50 J 0.8 50 J 0.8 50 J 0.6 50 J < 50 U Zinc 1000 NE 34.8 495 6 / 7 495 20 11 20 J 151 20 7.1 20 J < 20 U 12.7 20 J 12.1 20 J

Notes:

1 North Carolina Groundwater Standards 15A NCAC 02L .0202, April 2022

Gray shaded results exceed the NC 02L Groundwater Standards

2 North Carolina Water Supply water quality standards for all water supply classifications (WS I-V) waters per 15A NCAC 02B .0208, .0212, .0214, .0215, .0216, and .0218. Unless indicated otherwise, the NC 02B is presented. In the absence of the NC 02B, the EPA NRWQC is presented, and in the absence of the EPA NRWQC, the NC Protective Value is presented.

3 Seymour Johnson Air Force Base Background Concentrations as presented in "Background Concentrations of Pesticides and Metals in Soil and Groundwater, Seymour Johnson Air Force Base, North Carolina" (USACE, 2002).

a NC 02B Water Supply Standard is absent. Environmental Protection Agency Nationally Recommended Water Quality Criteria (EPA NRWQC) per NC DWR “Surface Water Quality Standards, Criteria & Protective Values” table (dated July 5, 2017) Water Supply Standard provided.

b NC 02B and the EPA NRWQC Water Supply standards are absent. The NC Protective Values per NC DWR “Surface Water Quality Standards, Criteria & Protective Values” table (dated July 5, 2017) Water Supply Standard provided.

SW-BKG-LF15

March 23, 2022 March 23, 2022 March 23, 2022 March 23, 2022 March 23, 2022 March 29, 2022 March 29, 2022

MW-303 MW-304 MW-305 MW-307 MW-308 SW-BKG-LF8

< = less than the limit of detection µg/L = micrograms per liter

ID = identification

J = Estimated

LOQ = Limit of Quantitation

NC - North Carolina

NC 02L = North Carolina Groundwater Standards

NC 02B = North Carolina Surface Water Standards

NE = not established

Qual = Laboratory Qualifier

U = Nondetect

2022 LTM Sampling for Site LF008

FIGURES

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2316250

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2320000

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FIGURE 1

NOTES:

NC

GA

VA

SC

KY

TN

WV

OH MDMDIN

LF008

Site Location Map

July 2022

Coordinate System:NAD 1983 StatePlane North Carolina FIPS 3200 Feet Projection: Lambert Conformal Conic Horizontal Datum: North American 1983 False Easting: 1,999,996.0000 False Northing: 0.0000 Central Meridian: -81.0000 Standard Parallel 1: 32.5000 Standard Parallel 2: 34.8333 Latitude Of Origin: 31.8333 Units: Foot US Base Map Date: 2013 Base Map Source: Seymour Johnson Air Force Base GeoBase

0 0.5 1 1.50.25

Kilometers

0 0.50.25

Miles

Key Features SJAFB Installation Boundary Former Landfill Site Boundary

Seymour Johnson Air Force Base

Carolina Group Performance Based Remediation Contract

Seymour Johnson Air Force Base Goldsboro, NC

Contract No. FA8903-13-C-0006

URS Group, Inc.

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NOTES: Coordinate System:NAD 1983 StatePlane North Carolina FIPS 3200 Feet

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Key Features

@A LTM Program Monitoring Well (Sampled in 2022)

@A Former Monitoring Well

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Downstream Surface Water Sampling Location

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Upstream Surface Water Sampling Location Stoney Creek Installation Boundary LF008 Site Boundary

Site Location

Seymour Johnson AFB

FIGURE 2

LF008

Site Map

July 2022

0 30 60 9015 Meters

0 100 20050 Feet

Carolina Group Performance Based Remediation Contract

Seymour Johnson Air Force Base Goldsboro, NC

Contract No. FA8903-13-C-0006

URS Group, Inc.

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NOTES: Coordinate System:NAD 1983 StatePlane North Carolina FIPS 3200 Feet

Projection: Lambert Conformal Conic Horizontal Datum: North American 1983 False Easting: 1,999,996.0000 False Northing: 0.0000 Central Meridian: -81.0000 Standard Parallel 1: 32.5000 Standard Parallel 2: 34.8333 Latitude Of Origin: 31.8333 Units: Foot US Base Map Date: 2013 Base Map Source: Seymour Johnson Air Force Base GeoBase

Key Features

@A LTM Program Monitoring Well (Sampled in 2022)

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Downstream Surface Water Sampling Location

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Upstream Surface Water Sampling Location Groundwater Contour Stoney Creek Installation Boundary LF008 Site Boundary

Site Location

Seymour Johnson AFB

4A

4A Groundwater elevations and contours based on December 15, 2021 well inspection gauging data.

FIGURE 3

LF008

Monitoring Locations and Groundwater Contour Map

July 2022

0 30 60 9015 Meters

0 100 20050 Feet

Carolina Group Performance Based Remediation Contract

Seymour Johnson Air Force Base Goldsboro, NC

Contract No. FA8903-13-C-0006

URS Group, Inc.

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NOTES: Coordinate System:NAD 1983 StatePlane North Carolina FIPS 3200 Feet

Projection: Lambert Conformal Conic Horizontal Datum: North American 1983 False Easting: 1,999,996.0000 False Northing: 0.0000 Central Meridian: -81.0000 Standard Parallel 1: 32.5000 Standard Parallel 2: 34.8333 Latitude Of Origin: 31.8333 Units: Foot US Base Map Date: 2013 Base Map Source: Seymour Johnson Air Force Base GeoBase

Key Features

@A LTM Program Monitoring Well (Sampled in 2022)

ED

Downstream Surface Water Sampling Location

ED

Upstream Surface Water Sampling Location Stoney Creek Installation Boundary LF008 Site Boundary

Site Location

Seymour Johnson AFB

Analytical data collected during March 2022 sampling event.

Concentrations listed in micrograms per liter. Grey shaded values indicate the analyze concentration in groundwater was reported above North Carolina Groundwater Standards.

J - Estimated concentration AFB - Air Force Base LTM - Long Term Monitoring < - Analyte not detected above the listed limit of detection (LOD)

FIGURE 4

LF008

Chemical of Potential Concern Concentrations

August 2022

0 30 60 9015

Meters

0 100 20050

Feet

Carolina Group Performance Based Remediation Contract

Seymour Johnson Air Force Base Goldsboro, NC

Contract No. FA8903-13-C-0006

URS Group, Inc.

ED

SW-BKG-LF15

(Approx. 1 Mile Downstream)

Antimony < Cadmium 5.5

Cobalt 11.2 Iron 4840 Lead 3.2 J

Manganese 139 Thallium <

MW-303

Metals

Antimony 2.8 J Cadmium <

Cobalt < Iron 351 Lead 156

Manganese 4.6 J Thallium <

MW-308

Metals

Antimony < Cadmium <

Cobalt 0.2 J Iron 4770 Lead 2.8 J

Manganese 46.6 Thallium <

MW-304

Metals

Antimony 1.7 J Cadmium <

Cobalt < Iron 1180 Lead 1.1 J

Manganese 31 Thallium <

SW-BKG-LF8

Metals

Antimony < Cadmium 0.6 J

Cobalt < Iron 472 Lead 3.2 J

Manganese 8.5 J Thallium 2.5 J

MW-305

Metals

Antimony < Cadmium <

Cobalt 0.2 J Iron 940 Lead 1.1 J

Manganese 23.5 Thallium <

SW-BKG-LF15

Metals

Antimony 1 J Cadmium <

Cobalt 1.2 J Iron 533 Lead 4.3 J

Manganese 24.3 Thallium 3.2 J

MW-307

Metals

APPENDIXA Laboratory Reports

04/07/22

Technical Report for

AECOM, INC.

Seymour Johnson AFB LF006; Goldsboro, NC

60417848

SGS Job Number: FA94229

Sampling Date: 03/23/22

Report to:

AECOM, INC.

12120 Shamrock Plaza Suite 100 Omaha, NE 68154 jeff.aust@aecom.com; jared.desadier@aecom.com;

paul.m.wilson@aecom.com ATTN: Paul Wilson

Total number of pages in report:

Certifications: FL(E83510), LA(03051), KS(E-10327), NC(573), NJ(FL002), NY(12022), SC(96038001)

DoD ELAP(ANAB L2229), AZ(AZ0806), CA(2937), TX(T104704404), PA(68-03573), VA(460177), AL, AK, AR, CT, IA, KY, MA, MI. MS, ND, NH, NV, OK, OR, IL, UT, VT, WA, WI, WV

This report shall not be reproduced, except in its entirety, without the written approval of SGS.

Test results relate only to samples analyzed.

SGS North America Inc. • 4405 Vineland Road • Suite C-15 • Orlando, FL 32811 • tel: 407-425-6700 • fax: 407-425-0707

Test results contained within this data package meet the requirements of the National Environmental Laboratory Accreditation Program and/or state specific certification programs as applicable.

Client Service contact: Muna Mohammed 407-425-6700

Norm Farmer Technical Director

Orlando, FL 04/07/22 e-Hardcopy 2.0 Automated Report

SGS is the sole authority for authorizing edits or modifications to this document.

Unauthorized modification of this report is strictly prohibited.

Review standard terms at: http://www.sgs.com/en/terms-and-conditions

The results set forth herein are provided by SGS North America Inc.

Please share your ideas about how we can serve you better at:

EHS.US.CustomerCare@sgs.com

FA94229

mailto:EHS.US.CustomerCare@sgs.com?subject=Customer care improvement idea (report FA94229)

Table of Contents -1-

Sections:

Section 1: Sample Summary Section 2: Case Narrative/Conformance Summary Section 3: Summary of Hits Section 4: Sample Results

4.1: FA94229-1: MW-303

4.2: FA94229-2: MW-307

4.3: FA94229-3: DUP-1-20220323

4.4: FA94229-4: TRIP BLANK

4.5: FA94229-5: MW-308

4.6: FA94229-6: MW-304

4.7: FA94229-7: MW-305

4.8: FA94229-8: TRIP BLANK

Section 5: Misc. Forms 5.1: Chain of Custody 5.2: QC Evaluation: DOD QSM5.x Limits

Section 6: MS Volatiles - QC Data Summaries 6.1: Method Blank Summary 6.2: Blank Spike Summary 6.3: Matrix Spike/Matrix Spike Duplicate Summary 6.4: Instrument Performance Checks (BFB) 6.5: Internal Standard Area Summaries 6.6: Surrogate Recovery Summaries 6.7: Initial and Continuing Calibration Summaries 6.8: Run Sequence Reports

Section 7: MS Volatiles - Raw Data 7.1: Samples 7.2: Method Blanks 7.3: Blank Spikes 7.4: Matrix Spike/Matrix Spike Duplicates 7.5: Instrument Performance Checks (BFB) 7.6: Initial and Continuing Calibrations 7.7: Instrument Run Logs

Section 8: MS Semi-volatiles - QC Data Summaries 8.1: Method Blank Summary 8.2: Blank Spike Summary 8.3: Matrix Spike/Matrix Spike Duplicate Summary 8.4: Instrument Performance Checks (DFTPP) 8.5: Internal Standard Area Summaries 8.6: Surrogate Recovery Summaries 8.7: Initial and Continuing Calibration Summaries 8.8: Run Sequence Reports

Section 9: MS Semi-volatiles - Raw Data

-2-

Sections:

9.1: Samples 9.2: Method Blanks 9.3: Blank Spikes 9.4: Matrix Spike/Matrix Spike Duplicates 9.5: Instrument Performance Checks (DFTPP) 9.6: Initial and Continuing Calibrations 9.7: Instrument Run Logs 9.8: Prep Logs

Section 10: GC/LC Semi-volatiles - QC Data Summaries 10.1: Method Blank Summary 10.2: Blank Spike Summary 10.3: Matrix Spike/Matrix Spike Duplicate Summary 10.4: DDT/Endrin Breakdown Checks 10.5: Surrogate Recovery Summaries 10.6: GC Surrogate Retention Time Summaries 10.7: Initial and Continuing Calibration Summaries 10.8: Run Sequence Reports

Section 11: GC/LC Semi-volatiles - Raw Data 11.1: Samples 11.2: Method Blanks 11.3: Blank Spikes 11.4: Matrix Spike/Matrix Spike Duplicates 11.5: DDT/Endrin Breakdown Checks 11.6: Initial and Continuing Calibrations 11.7: Instrument Run Logs 11.8: Prep Logs

Section 12: Metals Analysis - QC Data Summaries 12.1: Inst QC MA18560: Hg 12.2: Inst QC MA18574: Al,Sb,As,Ba,Be,Cd,Ca,Cr,Co,Cu,Fe,Pb,Mg,Mn,Ni,K,Se,Ag, Na,Tl,V,Zn 12.3: Prep QC MP40482: Hg 12.4: Prep QC MP40483: Hg 12.5: Prep QC MP40510: Al,Sb,As,Ba,Be,Cd,Ca,Cr,Co,Cu,Fe,Pb,Mg,Mn,Ni,K,Se,Ag, Na,Tl,V,Zn 12.6: IDL and Linear Range Summaries

Section 13: Metals Analysis - Raw Data 13.1: Raw Data MA18560 13.2: Raw Data MA18574 13.3: Prep Logs

Section 14: Misc. Forms (SGS Dayton, NJ) 14.1: Chain of Custody 14.2: QC Evaluation: DOD QSM5.x Limits

-3-

Sections:

Section 15: Metals Analysis - QC Data (SGS Dayton, NJ) 15.1: Inst QC MA52167: B 15.2: Prep QC MP32083: B 15.3: IDL and Linear Range Summaries

Section 16: Metals Analysis - Raw Data (SGS Dayton, NJ) 16.1: Raw Data MA52167 16.2: Prep Logs

SGS North America Inc.

Sample Summary

AECOM, INC.

Job No: FA94229

Seymour Johnson AFB LF006; Goldsboro, NC Project No: 60417848

Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID

FA94229-1 03/23/22 13:05 TBAC 03/24/22 AQ Ground Water MW-303

FA94229-2 03/23/22 09:49 TBAC 03/24/22 AQ Ground Water MW-307

FA94229-3 03/23/22 08:00 TBAC 03/24/22 AQ Ground Water DUP-1-20220323

FA94229-4 03/23/22 00:00 TBAC 03/24/22 AQ Trip Blank Water TRIP BLANK

FA94229-5 03/23/22 11:30 TBAC 03/24/22 AQ Ground Water MW-308

FA94229-6 03/23/22 14:02 TBAC 03/24/22 AQ Ground Water MW-304

FA94229-7 03/23/22 11:45 TBAC 03/24/22 AQ Ground Water MW-305

FA94229-8 03/23/22 00:00 TBAC 03/24/22 AQ Trip Blank Water TRIP BLANK

SAMPLE DELIVERY GROUP CASE NARRATIVE

Client: AECOM, INC. Job No: FA94229 Site: Seymour Johnson AFB LF006; Goldsboro, NC Report Date: 4/7/2022 2:49:36 PM On 03/24/2022, 6 Sample(s), 1 Trip Blank(s) and 0 Field Blank(s) were received at SGS North America Inc - Orlando. at a maximum corrected temperature of 2.6 C. Samples were intact and chemically preserved, unless noted below. A SGS North America Inc. - Orlando Job Number of FA94229 was assigned to the project.

Laboratory sample ID, client sample ID and dates of sample collection are detailed in the report’s Results Summary Section.

Specified quality control criteria were achieved for this job except as noted below. For more information, please refer to the analytical results and QC summary pages.

MS Volatiles By Method SW846 8260D Matrix: AQ Batch ID: V2P3445 Sample(s) FA94229-1MS, FA94229-1MSD were used as the QC samples indicated.

FA94229-8 for Methylene Chloride: Confirmed ND by reanalysis.

Matrix: AQ Batch ID: V2P3447 FA94229-4: Confirmation run.

FA94229-8: Sample vial(s) contained bubbles greater than 6mm; reported results are considered minimum values. Confirmation run.

MS Semi-volatiles By Method SW846 8270E Matrix: AQ Batch ID: OP90488 Sample(s) FA94229-6MS, FA94229-6MSD were used as the QC samples indicated.

Blank Spike Recovery(s) for Anthracene are outside control limits.

Matrix Spike Recovery(s) for 2-Methylnaphthalene, 2-Nitroaniline, 3,3'-Dichlorobenzidine, 3-Nitroaniline, 4-Chloroaniline, 4-Nitroaniline, Benzyl Alcohol, Carbazole, Dibenzofuran, Isophorone are outside control limits. Probable cause is due to matrix interference.

Matrix Spike Duplicate Recovery(s) for 2-Methylnaphthalene, 2-Nitroaniline, 3,3'-Dichlorobenzidine, 3-Nitroaniline, 4-Chloroaniline, 4-Nitroaniline, Benzyl Alcohol, Carbazole, Dibenzofuran are outside control limits. Probable cause is due to matrix interference.

FA94229-1 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94229-6 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94229-7 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

GC/LC Semi-volatiles By Method SW846 8081B Matrix: AQ Batch ID: OP90446 Sample(s) FA94229-1MS, FA94229-1MSD were used as the QC samples indicated.

FA94229-1 for 4,4'-DDD: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for 4,4'-DDE: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for 4,4'-DDT: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Aldrin: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for alpha-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for alpha-Chlordane: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for beta-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for delta-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Dieldrin: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Endosulfan sulfate: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Endosulfan-I: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Endosulfan-II: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Endrin aldehyde: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Endrin ketone: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Endrin: Associated CCV outside of control limits high, sample was ND.

GC/LC Semi-volatiles By Method SW846 8081B Matrix: AQ Batch ID: OP90446 FA94229-1 for gamma-BHC (Lindane): Associated CCV outside of control limits high, sample was ND.

FA94229-1 for gamma-Chlordane: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Heptachlor epoxide: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Heptachlor: Associated CCV outside of control limits high, sample was ND.

FA94229-1 for Methoxychlor: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for 4,4'-DDD: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for 4,4'-DDE: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for 4,4'-DDT: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Aldrin: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for alpha-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for alpha-Chlordane: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for beta-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for delta-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Dieldrin: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Endosulfan sulfate: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Endosulfan-I: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Endosulfan-II: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Endrin aldehyde: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Endrin ketone: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Endrin: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for gamma-BHC (Lindane): Associated CCV outside of control limits high, sample was ND.

FA94229-2 for gamma-Chlordane: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Heptachlor epoxide: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Heptachlor: Associated CCV outside of control limits high, sample was ND.

FA94229-2 for Methoxychlor: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for 4,4'-DDD: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for 4,4'-DDE: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for 4,4'-DDT: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Aldrin: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for alpha-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for alpha-Chlordane: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for beta-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for delta-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Dieldrin: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Endosulfan sulfate: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Endosulfan-I: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Endosulfan-II: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Endrin aldehyde: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Endrin ketone: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Endrin: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for gamma-BHC (Lindane): Associated CCV outside of control limits high, sample was ND.

FA94229-3 for gamma-Chlordane: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Heptachlor epoxide: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Heptachlor: Associated CCV outside of control limits high, sample was ND.

FA94229-3 for Methoxychlor: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for 4,4'-DDD: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for 4,4'-DDE: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for 4,4'-DDT: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Aldrin: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for alpha-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for alpha-Chlordane: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for beta-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for delta-BHC: Associated CCV outside of control limits high, sample was ND.

GC/LC Semi-volatiles By Method SW846 8081B Matrix: AQ Batch ID: OP90446 FA94229-5 for Dieldrin: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Endosulfan sulfate: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Endosulfan-I: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Endosulfan-II: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Endrin aldehyde: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Endrin ketone: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Endrin: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for gamma-BHC (Lindane): Associated CCV outside of control limits high, sample was ND.

FA94229-5 for gamma-Chlordane: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Heptachlor epoxide: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Heptachlor: Associated CCV outside of control limits high, sample was ND.

FA94229-5 for Methoxychlor: Associated CCV outside of control limits high, sample was ND.

FA94229-6 for 4,4'-DDD: Associated CCV outside of control limits high, sample was ND.

FA94229-6 for 4,4'-DDE: Associated CCV outside of control limits high, sample was ND.

FA94229-6 for 4,4'-DDT: Associated CCV outside of control limits high, sample was ND.

FA94229-6 for Aldrin: Associated CCV outside of control limits high, sample was ND.

FA94229-6 for alpha-BHC: Associated CCV outside of control limits high, sample was ND.

FA94229-6 for alpha-Chlordane: Associated CCV outside of control limits high, sample was ND.

FA94229-6 for…